CN104901005B - Compact dual-frequency broadband circular polarization patch antenna - Google Patents
Compact dual-frequency broadband circular polarization patch antenna Download PDFInfo
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- CN104901005B CN104901005B CN201510319876.7A CN201510319876A CN104901005B CN 104901005 B CN104901005 B CN 104901005B CN 201510319876 A CN201510319876 A CN 201510319876A CN 104901005 B CN104901005 B CN 104901005B
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- radiation paster
- primary radiation
- paster
- medium substrate
- fluting
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- 230000010287 polarization Effects 0.000 title claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 65
- 230000003071 parasitic effect Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 23
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
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Abstract
The invention discloses a kind of compact dual-frequency broadband circular polarization patch antenna, including medium substrate, primary radiation paster, parasitic radiation paster and conductive ground layer；Primary radiation paster is located at the upper surface of medium substrate, and parasitic radiation paster is also located at the upper surface of medium substrate and as the frame of primary radiation paster, and be reserved with annular fine crack between parasitic radiation paster and primary radiation paster；Primary radiation paster is additionally provided with distributing point and fluting, and wherein distributing point electrically connects with feed line, and distributing point and fluting are all centrosymmetric using the geometric center point of primary radiation paster as origin；Conductive ground layer is located at the lower surface of medium substrate.The present invention adds the structure of a frame paster using central chip surface fluting again, it is designed to double-frequency broadband precision navigation antenna, its double frequency-band can cover L1 the and L2 frequency ranges of tetra- big navigation system of the Big Dipper/GPS/GLONASS/GALILEO, be suitable for hand-held precision navigation terminal.
Description
Technical field
The present invention relates to paster antenna, specifically a kind of compact dual-frequency broadband suitable for hand-held precision navigation terminal
Circularly-polarized patch antenna.
Background technology
The existing multiple countries in the whole world establish the satellite navigation and location system of oneself, the dipper system, the U.S. such as China
The GALILEO systems of GPS system, the GLONASS systems of Russia and Europe.Satellite navigation system terminal measurement type antenna,
Turn into the hot spot technology that people receive much attention.
There is the shortcomings that bandwidth of operation is narrow in general micro-strip paster antenna, be not suitable for being applied to accurately measurement dual-frequency navigation and connect
Although receipts machine by reduce microstrip antenna medium substrate dielectric constant or increase substrate thickness, its bandwidth of operation can be widened,
But the amount of widening is very limited, and with the substrate thickness increase of antenna, volume increase, if opening one on rectangular microband paste
Or multiple short seams parallel to edge, the size of antenna can be slightly reduced；Using couple feed, n-point feed, center short circuit
The corrective measure such as nail or paster corner cut, helps to properly increase paster antenna performance, but be all difficult to the work for greatly improving antenna
Bandwidth.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of broadband circle polarized paster day of compact dual-frequency
Line, in order to achieve the above object the present invention adopt the following technical scheme that：
A kind of compact dual-frequency broadband circular polarization patch antenna, including medium substrate, primary radiation paster, parasitic radiation paster
And conductive ground layer；
The primary radiation paster is located at the upper surface of the medium substrate, and the parasitic radiation paster is also located at the medium
The upper surface of substrate and as the frame of the primary radiation paster, to pass through the primary radiation paster, parasitic radiation paster is realized
Double-frequency broadband circular polarization radiation and reception, its double frequency-band are covered each by tetra- big navigation system of the Big Dipper/GPS/GLONASS/GALILEO
L1 and L2 frequency ranges, and be reserved with annular fine crack between the parasitic radiation paster and the primary radiation paster；
The primary radiation paster is additionally provided with distributing point and fluting, wherein the distributing point electrically connects with feed line, it is described
Distributing point and the fluting are all centrosymmetric using the geometric center point of the primary radiation paster as origin；
The conductive ground layer is located at the lower surface of the medium substrate.
Preferably, the medium substrate, primary radiation paster are square, and the parasitic radiation paster, annular fine crack are in Fang Huan
Shape, wherein the width of annular thin seam is less than 0.5mm；
The fluting quantity is two, and two flutings are respectively arranged on two diagonal of the primary radiation paster,
And the midpoint of two flutings is intersected；
The distributing point quantity is four, and four distributing points are respectively arranged on the both ends of two flutings.
Preferably, the inner side of the fluting is stepped.
Compact dual-frequency broadband circular polarization patch antenna provided by the invention is slotted using central chip surface and adds one again
The structure of individual frame paster, is designed to double-frequency broadband precision navigation antenna, and its double frequency-band can cover the Big Dipper/GPS/GLONASS/
L1 the and L2 frequency ranges of tetra- big navigation system of GALILEO, it is suitable for hand-held precision navigation terminal.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, not
Inappropriate limitation of the present invention is formed, in the accompanying drawings：
Fig. 1 is floor map of the embodiment of the present invention；
Fig. 2 is structural representation of the embodiment of the present invention；
Fig. 3 is reflectance factor bandwidth figure of the embodiment of the present invention；
Fig. 4 is the reflectance factor bandwidth figure of low-frequency range of the embodiment of the present invention；
Fig. 5 is the reflectance factor bandwidth figure of high band of the embodiment of the present invention.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment, herein illustrative examples of the invention
And explanation is used for explaining the present invention, but it is not as a limitation of the invention.
Embodiment：
As shown in Figure 1, 2, a kind of compact dual-frequency broadband circular polarization patch antenna, including medium substrate, primary radiation paster
1st, parasitic radiation paster 2 and conductive ground layer；The medium substrate is made up of composite, is mixed with the composite
The high ceramics of dielectric constant, polyphenylene sulfide and liquid crystal polymer, there is the dimensional stability of suitable precision form and to tin
The heat resistance of weldering, and there is higher dielectric property, realize the miniaturization of paster antenna, and the medium base in the embodiment of the present invention
Plate, which is not introduced into other layers, has the advantages that simple in construction, easy to process, cost is relatively low；The primary radiation paster 1 is located at and given an account of
The upper surface of matter substrate, the parasitic radiation paster 2 also paste located at the upper surface of the medium substrate and as the primary radiation
The frame of piece 1, to realize double-frequency broadband circular polarization radiation and reception by the primary radiation paster 1, parasitic radiation paster 2, its
Double frequency-band is covered each by L1 the and L2 frequency ranges of tetra- big navigation system of the Big Dipper/GPS/GLONASS/GALILEO；And the parasitic radiation
Annular fine crack 3 is reserved between paster 2 and the primary radiation paster 1, wherein the width of annular thin seam 3 is less than 0.5mm, carefully
Stitch wide and keep narrow enough, so that certain electric capacity can be increased between parasitic radiation paster 2 and primary radiation paster 1
Coupling, increase the resonance of antenna, further improve the bandwidth of antenna；The primary radiation paster 1, parasitic radiation paster 2 by copper,
The suitable conductive metal material such as nickel, silver alloy is made；The parasitic radiation paster 2 forms a parasitic radiation frame, so as to
A new resonant frequency is added, the frequency is lower than primary radiation frequency, is adapted to be covered as the radiation zone of more low frequency
It is wide；The primary radiation paster 1 is additionally provided with distributing point 11 and fluting 12, wherein the distributing point 11 electrically connects with feed line, institute
State distributing point 11 and the fluting 12 is all centrosymmetric using the geometric center point of the primary radiation paster 1 as origin, improve day
The axial ratio bandwidth of line, with do not slot typically 12 paster antenna compared with bandwidth be substantially improved, realize the broadband of microstrip antenna
The advantages of；The fluting 12 can increase the current path on its surface, adjust the resonant frequency of antenna, reduce antenna size, meanwhile,
Also gain and the bandwidth of antenna can be improved to a certain extent, be more beneficial for meeting the performance indications reached required by antenna；Institute
State the lower surface that conductive ground layer is located at the medium substrate.
As the part preferred scheme of above-described embodiment scheme, the medium substrate, primary radiation paster 1 are square, described
Parasitic radiation paster 2, annular fine crack 3 are in square ring-type, and its resonant frequency is determined by the length of side of primary radiation paster 1.
As the part preferred scheme of above-described embodiment scheme, 12 quantity of the fluting are two, two flutings 12
It is respectively arranged on two diagonal of the primary radiation paster 1, two flutings 12 is obtained maximum length, and opened described in two
The midpoint of groove 12 is intersected, and ensures fluting Central Symmetry and coupled interconnection.
As the part preferred scheme of above-described embodiment scheme, the quantity of distributing point 11 is four, four feeds
Point 11 is respectively arranged on the both ends of two flutings 12.Using symmetrical 4 coaxial feed modes, in the phase for ensureing antenna
The heart is stable, while easily realizes circular polarisation.
As the improvement of above-described embodiment scheme, the inner side of the fluting 12 is stepped, the general paster with same frequency
Antenna is compared, and patch size is decreased obviously.
Be illustrated in figure 3 reflectance factor bandwidth figure of the embodiment of the present invention, primary radiation paster 1 provide 1.53GHz~
1.87GHz bandwidth of operation, parasitic radiation paster 2 provide 1.2GHz~1.26GHz bandwidth of operation, in band bandwidth scope
For in 1.2GHz~1.26GHz and 1.53GHz~1.87GHz, input reflection coefficient (being also referred to as s11 parameters) can meet small
In -10dB, as long as being less than -10dB, it is available to be considered as antenna.
Fig. 4, Fig. 5 are the reflectance factor bandwidth figure of low-frequency range of the embodiment of the present invention and the reflectance factor bandwidth figure of high band,
The bandwidth of the two frequency ranges, almost it is difficult to accomplish so wide, the particularly band of high band in the paster antenna of comparable size
It is wide close to 350MGhz.And the two frequency bands can cover tetra- big navigation system of the Big Dipper/GPS/GLONASS/GALILEO, it is adapted to
In precise survey-grade navigation terminal.
The technical scheme provided above the embodiment of the present invention is described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are set forth, the explanation of above example is only applicable to help and understands this
The principle of inventive embodiments；Meanwhile for those of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
There will be changes in formula and application, in summary, this specification content should not be construed as limiting the invention.
Claims (1)
- A kind of 1. compact dual-frequency broadband circular polarization patch antenna, it is characterised in that：Including medium substrate, primary radiation paster, parasitic radiation paster and conductive ground layer；The primary radiation paster is located at the upper surface of the medium substrate, and the parasitic radiation paster is also located at the medium substrate Upper surface and as the frame of the primary radiation paster, to realize double frequency by the primary radiation paster, parasitic radiation paster Broadband circle polarized radiation and reception, its double frequency-band are covered each by the L1 of tetra- big navigation system of the Big Dipper/GPS/GLONASS/GALILEO With L2 frequency ranges, and annular fine crack is reserved between the parasitic radiation paster and the primary radiation paster；The primary radiation paster is additionally provided with distributing point and fluting, wherein the distributing point electrically connects with feed line, the feed Point and the fluting are all centrosymmetric using the geometric center point of the primary radiation paster as origin；The conductive ground layer is located at the lower surface of the medium substrate；The medium substrate, primary radiation paster are square, and the parasitic radiation paster, annular fine crack are in square ring-type, wherein described The width of annular fine crack is less than 0.5mm；The fluting quantity is two, and two flutings are respectively arranged on two diagonal of the primary radiation paster, and two Intersect at the midpoint slotted described in bar；The distributing point quantity is four, and four distributing points are respectively arranged on the both ends of two flutings；The fluting Inner side is stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319876.7A CN104901005B (en) | 2015-06-11 | 2015-06-11 | Compact dual-frequency broadband circular polarization patch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319876.7A CN104901005B (en) | 2015-06-11 | 2015-06-11 | Compact dual-frequency broadband circular polarization patch antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104901005A CN104901005A (en) | 2015-09-09 |
| CN104901005B true CN104901005B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510319876.7A Active CN104901005B (en) | 2015-06-11 | 2015-06-11 | Compact dual-frequency broadband circular polarization patch antenna |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258416B (en) * | 2016-12-29 | 2020-02-04 | 深圳市景程信息科技有限公司 | Dual-frequency broadband patch circularly polarized antenna |
| CN107645051A (en) * | 2017-10-30 | 2018-01-30 | 广东工业大学 | A kind of circular polarized antenna of regular polygon paster |
| CN108110437A (en) * | 2017-12-18 | 2018-06-01 | 东莞市合康电子有限公司 | Minimize tunable GPS antenna device and its production technology |
| CN110034394B (en) | 2018-01-11 | 2023-06-20 | 三星电子株式会社 | Multi-feed patch antenna and device comprising same |
| CN108306106B (en) * | 2018-01-29 | 2023-06-27 | 福州大学 | Satellite navigation loop antenna and terminal with miniaturized rectangular patch short-circuit loading |
| CN109301489B (en) * | 2018-09-06 | 2020-05-08 | 深圳大学 | Low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication |
| CN112448136A (en) * | 2019-08-27 | 2021-03-05 | 华为技术有限公司 | Antenna and mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331649A (en) * | 2005-12-16 | 2008-12-24 | 株式会社Emw天线 | Single layer dual band antenna with circular polarization and single feed point |
| EP2065974A1 (en) * | 2007-11-20 | 2009-06-03 | Electronics and Telecommunications Research Institute | Multiband antenna of gap filler system |
| CN101740870A (en) * | 2009-12-28 | 2010-06-16 | 中国电子科技集团公司第二十六研究所 | Miniaturized single feed point dual-frequency and dual-polarization microstrip antenna |
| CN102610908A (en) * | 2012-03-01 | 2012-07-25 | 西安电子科技大学 | Ultra wide band four-tape circularly polarized antenna |
| CN103280624A (en) * | 2013-04-09 | 2013-09-04 | 广东工业大学 | Patch antenna |
-
2015
- 2015-06-11 CN CN201510319876.7A patent/CN104901005B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331649A (en) * | 2005-12-16 | 2008-12-24 | 株式会社Emw天线 | Single layer dual band antenna with circular polarization and single feed point |
| EP2065974A1 (en) * | 2007-11-20 | 2009-06-03 | Electronics and Telecommunications Research Institute | Multiband antenna of gap filler system |
| CN101740870A (en) * | 2009-12-28 | 2010-06-16 | 中国电子科技集团公司第二十六研究所 | Miniaturized single feed point dual-frequency and dual-polarization microstrip antenna |
| CN102610908A (en) * | 2012-03-01 | 2012-07-25 | 西安电子科技大学 | Ultra wide band four-tape circularly polarized antenna |
| CN103280624A (en) * | 2013-04-09 | 2013-09-04 | 广东工业大学 | Patch antenna |
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| CN104901005A (en) | 2015-09-09 |
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Effective date of registration: 20231110 Address after: 510000 Room 301, unit 1, building 2, No. 11, puyuzhong Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Boyuan Equipment Technology Co.,Ltd. Address before: 510000 Panyu District, Guangzhou, Guangdong, Panyu District, No. 100, West Ring Road, outside the city. Patentee before: GUANGDONG University OF TECHNOLOGY |
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